<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>06_浮动布局</title>
    <style>
        .fu{background-color: #ff0;
        overflow: hidden;
        width: 800px;}
        .fu>div{
            width: 100px;
            height: 100px;
            border: 3px solid #000;
        }
        .z1{background-color: #f00;
        float: left;
        float: right;}
        .z2{background-color:#00FF00;
        float: left;
        float: right;}
        .z3{background-color: #0000FF;
        float: left;
        float: right;}
    </style>
</head>
<body>
<div class="fu">
    <div class="z1"></div>
    <div class="z2"></div>
    <div class="z3"></div>
</div>
</body>
</html>